Piston bing



Feb 6, 11923. 11AM-9@ 'U6 -A. H. WADELL. 'Pls'roN RING'. FILEDOCT. 11.1920.

TOI?

/7 TTORNEY .Patented Feb. 6, 1923i.

tiene' erase earner ortica.,

NEW JERSEY.

TO. ABSO-SEAL JOINT A CGRPORATEQN 0F rrsrori nnte.

Application ledl October 11, 1920. Serial Ito. 416,097.

To all whom 't/may concern.'

Be it known that I, ALBERT H. WADELL, a citizen of the United Stat/es, residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Piston Rings, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which 1t pertains to make, construct, yand use the same, reference being had to the accompanying drawings, and to numlerals of reference marked thereon, forming a part of this specification.

My invention relates to improvements 1n piston rings, and more particularly to rings of that class which are adapted to be used in internal combustion en ines.

The invention has for its object to pro-- vide a ring of the character specified, which,

while flexible, contractible, and expansible to permit its easy insertion and removal w1ll yet make a fluid tight joint both between the piston andi the cylinder walls and b etween the ring and the piston, and wherein the arrangement is such that there 1s nothing to score or cut the cylinder wall during the reciprocation of the piston.

With these ends in View, my invention consists in certain novelties of construction and arrangements of parts as hereinafter set forth and pointed out in the claims.

While the preferred form of my invention is illustrated in the accompanying drawings, yet it is to be understood that minor changes may be made without departing from the scope thereof.

n the drawings, l

Figure 1 represents, a side elevation of a piston ring constructed in accordance with the invention.

Figure 2 represents, a plan view ofthe same.

Figure 3 represents, a fragmentary plan view of the ends of the ring in open position with the sealing ring removed.

Figure 4 represents, a side elevation of the same; and

Figure 5 represents, on an enlarged scale, a transverse section taken on llne -w of Figure l, looking in the direction indicated by the arrow.

Similar numerals parts throughout drawings.

i ln the drawings, l represents a piston ring, lpreferablycomposed of comparatively soft, smooth wearing metal, such as cast iron of proper quality, although any othersu'itable materlal may be employed, if desired.

The ends of the ring overlap, so as to form a lap joint, and consists of a tongue 2, provided with a convex upper surface, and atongue 3 provided with a concave under surface designed so that when the ring is closed and the tongue 2 overlaps the tongue 3 a Huid tight joint is provided, as clearly indicated in Figures 1 and 5 of the dra mgs.

vrlhe ring is further provided in its outer 'l0 of reference refer to like the specification and ,circumferential surface with a groove 4 deslgned to receivea split sealing ring 5.

The sealing ring 5 is preferably formed of spring material and the out-side diameter of the ring is preferably a few thousandths of an inch larger in diameter than the out- Side diameter of the piston ring.

rThe ends of the ring 5 are provided with beveled ends 6 so as to overlap and form a tight joint. The upper edge of the ring 5 80 is preferably beveled as at 7 as clearly indicated in Figure 5 of the drawings. rThis beveled edge forms an oil seal and also prevents the gas from escaping.

Experience has demonstrated that the organization above described is a highly eiiicient one, and while l have shown the preferred embodiment of my present invention, I do not wish to be limited to the eX- act details of construction shown and described, as obvious modifications thereof, not involving the exercise of invention, may be made by any skilled mechanic, and such departures from what is herein set forth, l consider within the scope and terms of my r claim.

Having thus descrlbed nay-invention, what claim! as new and desire to secure by Letters Patent is A packing ring comprising a split ring ico having end portions provided with overlep-` being provided with overlapping ends, and ping tongues, one entire surfa of one an outer beveled edge. l 10 tongue being conceved and the entire eon- This specification signed and witnessed 'taeting surface of the othen tongue being this Seventh day of October 1920.

5 oonvexed end bifurcated,a,perpheral groove ALBERT WADELL.. i

formed in the outer surface of said ring, a. Witnesses: split sealing rmg formed of spring material EDWARD A. Grrr, l

seated in said peripheral groove, seid ring FRED EVANS. 

